Publications by authors named "Hung Hoang"

Unlabelled: This research aimed to assess the biological characteristics of both submerged culture mycelium and artificial basidioma of NTH-PL4. The extraction yield from the basidioma surpassed that of the mycelium. The use of hot water extract resulted in the highest total carbohydrate content, predominantly found in the basidioma.

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Background: Road traffic accidents have significantly impacted public health in Vietnam. This study investigated the patterns of midface fractures in Vietnam and their correlation with road traffic accidents in the country.

Methodology: This retrospective cross-sectional study reviewed 2187 medical records of patients with midface fractures in Ho Chi Minh City.

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Background: Several nations around the world have utilized autologous immune enhancement therapy in the treatment of cancer, with initial positive outcomes. This study describes our experience with autologous gamma delta T cell immunotherapy for the treatment of non-small cell lung cancer patients in Vietnam, a developing nation.

Methods: Five patients with non-small cell lung cancer at stages III - IV were enrolled in the study.

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The results of in silico screening of the 50 isolated compounds from against the target proteins PDE4 (PDE4A, PDE4B, and PDE4D) showed binding affinity ranges from -5.81 to -11.56, -5.

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Objectives: The accuracy of 3-dimensional images produced by the intraoral scanner (IOS) is affected by scanning-aid materials. This in vitro study aimed to elucidate the influence of scanning-aid materials on the accuracy (trueness and precision) of digital scanning on the bilateral upper posterior edentulous jaw (Kennedy class I).

Methods: The asymmetrical bilateral upper posterior edentulous model (reference model) was generated using a 3D printer with three groups (application of TiO powder - composite and no-treatment control).

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Background/purpose: World Health Organization (WHO) oral health survey manual is the main guideline for most oral health surveys worldwide. It has been updated several times since 1971; however, using papers and pens for data recording remains unchanged. This study aimed to develop the Vietnam Oral Survey Electronics Recorder (VOSER) to record dental caries data based on the WHO 2013 criteria and assess its reliability and efficiency.

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Amidst the fourth COVID-19 wave in Viet Nam, national lockdowns necessitated the closure of numerous dental schools. To assess DDS (Doctor of Dental Surgery) graduation exams, this study analyzed their 2021 implementation in comparison to onsite exams conducted in 2020 and 2022 at the Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Viet Nam (FOS-UMPH). The final online examination comprises two main sessions: a synchronous online examination using FOS-UMPH e-Learning for theories (consisting of 200 MCQs and 3 written tests with 3 clinical situations needed be solved) and a synchronous online examination using Microsoft Teams for practicum (comprising of 12 online OSCE stations).

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Article Synopsis
  • The study examines how the translucency of core buildup composite resins influences the accuracy of 3D images produced by an intraoral scanner (IOS) during dental procedures.
  • The experiment involved scanning a 3D-printed model with different translucency levels of composite resins and comparing the results with high-accuracy industrial scans.
  • Results indicated that higher translucency in composite resins led to greater inaccuracies in optical impressions, suggesting that dental practitioners must consider both the optical and mechanical properties of materials for better fitting CAD/CAM prostheses.
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Arrangements of hydroxyl groups on graphene sheets were systematically investigated using density functional theory calculations that included van der Waals interactions. Results show that hydroxyl groups tend to gather at -positions on graphene sheets to generate perfect ring-like hexahydroxyl group adsorption. The close proximity of hydroxyl groups is in good agreement with the experimental separation between unoxidized, aromatic and oxidized, saturated regions in graphene oxide.

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The structural, morphological, and chemical characterization of samples is of utmost importance for a large number of scientific fields. Furthermore, this characterization very often needs to be performed in three dimensions and at length scales down to the nanometer. Therefore, there is a stringent necessity to develop appropriate instrumentational solutions to fulfill these needs.

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Background: We aimed to evaluate the effectiveness and tolerability of Afatinib as first-line treatment of advanced epidermal growth factor receptor (EGFR) mutant non small cell lung cancer (NSCLC) in a real-world setting.

Patients And Methods: This is a retrospective study of Vietnamese patients  with advanced EGFR-mutant NSCLC treated with first-line afatinib at the National Cancer Hospital from 1st January 2018 to 31st October 2020. Patients' demographic, clinical and treatment data were captured.

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Lead-free BiNaKTiO₃ (BNKT) ferroelectric films on Pt/TI/SIO₂/Si substrates were prepared via a sol-gel spin coating routine. The microstructures and multiferroic behaviors of the films were examined intimately as a function of the annealing time. A rise of annealing time enhanced the crystallization of the films via the perovskite structure.

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Background: The periodontal condition has a reciprocal relationship with rheumatoid arthritis (RA). Rheumatoid arthritis patients are reported to present with more serious periodontal disease (PD) as compared to non-RA patients.

Objectives: This study aimed to evaluate the effects of non-surgical periodontal treatment on Vietnamese patients with active RA and PD, where the clinical characteristics and serum indices of the patients were of interest.

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Type 2 diabetes mellitus (T2DM) is an important public health problem. The knowledge of bacterial communities in the gut of Vietnamese patients with T2DM and non diabetic controls is still insufficient. We report in this article the 16S rDNA amplicon data of the gut microbiomes of Vietnamese patients with T2DM and nondiabetic controls carried out using the Illumina sequencing.

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The complement system may be crucial during dengue virus infection and progression to severe dengue. This study investigates the role of MBL2 genetic variants and levels of MBL in serum and complement proteins in Vietnamese dengue patients. MBL2 genotypes (- 550L/H, MBL2 codon 54), MBL2 diplotypes (XA/XO, YA/XO) and MBL2 haplotypes (LXPB, HXPA, XO) were associated with dengue in the study population.

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Background: The morbidity in dengue fever is dependent on the dengue virus (DENV) serotypes, the patient age, predisposing immunogenic markers and the frequency of primary and secondary infections. This study aims to distinguish acute primary from secondary dengue infections of Vietnamese adults and to assess the association of viremia and anti-dengue immunoglobulin levels with clinical outcomes.

Study Design: Viral RNA, dengue serotypes and levels of anti-dengue IgM and IgG of hospitalized adult cases were determined in EDTA-plasma samples prospectively collected during three consecutive years of dengue infection in Hanoi.

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Choriocarcinoma is a malignant tumor that typically appears in gonadal organs and primarily occurs in women of reproductive age. Being a primary extragonadal choriocarcinoma, primary pulmonary choriocarcinoma (PPC) is an extremely rare condition. Due to the rarity of PPC, no standardized treatment has been established so far.

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The clinical outcome of dengue is due to a complex interplay between dengue virus (DENV) and host immune factors, including complement and cytokine systems. Proinflammatory cytokines are mainly produced by monocytes in response to infectious pathogens. This study investigated the levels of proinflammatory cytokines, including tumor necrosis factor-α (TNF-α), interleukin-1 beta (IL-1β), and IL-12 in Vietnamese patients with dengue, and their correlations with the clinical outcome of dengue infection in 156 patients clinically classified as dengue without warning signs (DWS-,  = 87), dengue with warning signs (DWS+,  = 62), and severe dengue (SD,  = 7) patients as well as in 60 healthy controls (HCs).

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Article Synopsis
  • The study surveyed the periodontal health of Vietnamese patients with rheumatoid arthritis (RA) and compared it to those with osteoarthritis (OA).
  • There was a significantly higher prevalence of periodontitis in the RA group (67%) compared to the OA group (28%), with more severe cases also found in RA patients.
  • Results indicated that periodontitis is linked to increased disease activity in RA, suggesting a strong association between periodontal disease and rheumatoid arthritis severity.
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Diaphragmatic hernias (DH) may be congenital or acquired in origin. Those causing obstructive jaundice in the elderly are extremely rare but can occur. These patients may present with painless jaundice, early satiety, and weight loss due to biliary tract obstruction and stomach compression by the hernia.

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Background And Objective: The human ficolin-2, encoded by FCN2, recognizes pathogen-associated acetylated residues on their cell surfaces and activates the lectin complement cascade. This study aimed to investigate the contribution of human ficolin-2 and the functional FCN2 genetic variants in dengue virus (DENV) infection and in clinical progression.

Methods: FCN2 genetic polymorphisms in the promoter, intron 7 and exon 8 were genotyped in 279 patients with dengue fever and in 200 healthy controls by direct Sanger sequencing.

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Objectives: During dengue fever, a pronounced gamma-interferon immune response produces neopterin and promotes tryptophan degradation by the enzyme indoleamine-2,3-dioxygenase 1 (IDO-1). Activated IDO-1 is indicated by an increased kynurenine to tryptophan ratio (Kyn/Trp) in patients.

Methods: Plasma levels of neopterin, kynurenine, and tryptophan were measured in 72 hospitalized dengue virus (DENV) patients and 100 healthy individuals.

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The global nutrition transition has contributed to child obesity and dental caries in developing countries, including Vietnam. Few studies have described the nutrition and oral health of mothers and children. This a descriptive study of the nutrition and oral health characteristics of a convenience sample of 571 children aged 2 to 5 years and their mothers from 5 urban preschools in Central and South Vietnam.

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Wedelolactone is known to have biological activities such as anti-inflammation hepatitis, anti-hepatotoxic activity, and trypsin inhibitory effect. However, up to date, there has not been any deep study on the role of wedelolactone for zymosan-induced signaling pathways in the process of regulating the excessive inflammatory responses in host. Here, we demonstrated that wedelolactone plays an essential role for regulation of zymosan-induced inflammatory responses in murine bone marrow-derived macrophages (BMDMs).

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